3-Phenoxyphenyl isocyanate
3-Phenoxyphenyl isocyanate (CAS 87873-72-1), with the molecular formula C6H5OC6H4NCO and a molecular weight of 211.22 g/mol, is a valuable organic building block. It is characterised by its reactive isocyanate functional group, making it a key intermediate in various chemical synthesis pathways. Primarily utilized in research and development settings, it serves as a precursor for more complex organic molecules within the pharmaceutical and chemical industries.

Organic Synthesis Intermediate
This compound serves as a reactive intermediate in the synthesis of diverse organic molecules. Its isocyanate group readily reacts with nucleophiles, facilitating the formation of carbamates, ureas, and other amide derivatives.
Pharmaceutical Research
As a versatile building block, 3-Phenoxyphenyl isocyanate can be employed in the development of novel pharmaceutical compounds. Its structure allows for the introduction of specific functional groups into potential drug candidates.
Materials Science
The isocyanate functionality may be leveraged in the development of specialised polymers or materials. Its incorporation can modify material properties, potentially leading to new applications in advanced materials.
| Molecular weight | 211.22 |
|---|---|
| Linear formula | C6H5OC6H4NCO |
| Assay | 98% |
| Boiling point | 294 °C(lit.) |
| Density | 1.17 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5925(lit.) |
| Storage temperature | 2-8°C |


Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38-42 |
| Safety statements (S) | 23-26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-Phenoxyphenyl isocyanate used for?
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3-Phenoxyphenyl isocyanate is primarily used as a building block and intermediate in organic synthesis, particularly in pharmaceutical research and potentially in materials science due to its reactive isocyanate group.
What are the CAS number and molecular formula for 3-Phenoxyphenyl isocyanate?
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The CAS number for 3-Phenoxyphenyl isocyanate is 87873-72-1, and its molecular formula is C6H5OC6H4NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Phenoxyphenyl isocyanate with an assay of 98%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 3-Phenoxyphenyl isocyanate be handled safely?
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3-Phenoxyphenyl isocyanate is classified as dangerous. It is harmful if swallowed, in contact with skin, or if inhaled, and causes skin and eye irritation. It can also cause respiratory irritation and sensitisation by inhalation. Handle with appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a suitable respirator, in a well-ventilated area. Avoid breathing vapours.
How is 3-Phenoxyphenyl isocyanate packed, shipped, and exported?
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3-Phenoxyphenyl isocyanate is carefully packed according to industry standards for safe transport. Tech Serve Solutions can arrange worldwide export. Please contact us for specific shipping and export inquiries.
How can I request a quote or sample for 3-Phenoxyphenyl isocyanate?
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To request a quote or a sample of 3-Phenoxyphenyl isocyanate, please use the contact form on our website or call our sales department directly. Our team will be pleased to assist you.
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